No direct substitute. For Fluidics, contact Technical Support at IHSTechSupport@idexcorp.com // For Optical Filters, contact semrock@idexcorp.com
Our Extender Tool is for headless nuts w 1/4 Hex Drive. This extender is used to tighten most of IDEX Health and Science's knurled nuts. It is effective in getting to hard to reach places.